CH534403A - Rauchdetektor - Google Patents

Rauchdetektor

Info

Publication number
CH534403A
CH534403A CH1587971A CH1587971A CH534403A CH 534403 A CH534403 A CH 534403A CH 1587971 A CH1587971 A CH 1587971A CH 1587971 A CH1587971 A CH 1587971A CH 534403 A CH534403 A CH 534403A
Authority
CH
Switzerland
Prior art keywords
smoke detector
smoke
detector
Prior art date
Application number
CH1587971A
Other languages
English (en)
Inventor
Okuda Yoshihiko
Araki Tsunehiko
Matsumoto Shigeru
Original Assignee
Matsushita Electic Works
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electic Works filed Critical Matsushita Electic Works
Publication of CH534403A publication Critical patent/CH534403A/de

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T7/00—Details of radiation-measuring instruments
    • G01T7/12—Provision for actuation of an alarm
    • G01T7/125—Alarm- or controlling circuits using ionisation chambers, proportional counters or Geiger-Mueller tubes, also functioning as UV detectors
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
    • G08B17/113—Constructional details

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
CH1587971A 1970-11-05 1971-11-01 Rauchdetektor CH534403A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9771770 1970-11-05

Publications (1)

Publication Number Publication Date
CH534403A true CH534403A (de) 1973-02-28

Family

ID=14199627

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1587971A CH534403A (de) 1970-11-05 1971-11-01 Rauchdetektor

Country Status (5)

Country Link
CA (1) CA944490A (de)
CH (1) CH534403A (de)
DE (1) DE2153409A1 (de)
FR (1) FR2112473B1 (de)
GB (1) GB1364720A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO174606C (no) * 1991-06-17 1994-06-01 Bjoern Rennemo Framgangsmåte og anordning for måling av röykkonsentrasjon
US9053892B2 (en) 2010-12-30 2015-06-09 Walter Kidde Portable Equipment, Inc. Ionization device

Also Published As

Publication number Publication date
DE2153409A1 (de) 1972-05-25
FR2112473A1 (de) 1972-06-16
CA944490A (en) 1974-03-26
GB1364720A (en) 1974-08-29
FR2112473B1 (de) 1974-10-31

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Legal Events

Date Code Title Description
PL Patent ceased